English

How will you prepare acetic anhydride from acetic acid?

Advertisements
Advertisements

Questions

How will you prepare acetic anhydride from acetic acid?

Write chemical reactions for the following conversion:

Acetic acid into acetic anhydride

Short/Brief Note
Advertisements

Solution

Conversion of acetic acid into acetic anhydride:

\[\begin{array}{cc}
\phantom{...}\ce{CH3 - CO}\phantom{......................}\\
\phantom{.....}\backslash\phantom{...........}\\
\ce{\underset{(acetic acid)}{2CH3COOH} ->[P2O5][\Delta] \phantom{......}\phantom{............}O + H2O}
\phantom{................................}\\
\phantom{.....}/\phantom{...........}\\
\ce{\underset{(acetic anhydride)}{CH3 - CO}}\phantom{..................}
\end{array}\]

shaalaa.com
  Is there an error in this question or solution?
Chapter 12: Carbonyl Compounds and Carboxylic Acids - Evaluation [Page 194]

APPEARS IN

Samacheer Kalvi Chemistry - Volume 1 and 2 [English] Class 12 TN Board
Chapter 12 Carbonyl Compounds and Carboxylic Acids
Evaluation | Q 15. i. | Page 194

RELATED QUESTIONS

Answer in brief.

What is the action of hydrazine on cyclopentanone in presence of KOH in ethylene glycol?


Answer in brief.

Write reaction showing conversion of Acetaldehyde into acetaldehyde dimethyl acetal.


The following compounds will give positive Fehling’s test.


Benzaldehyde gives all tests positive EXCEPT ____________.


The product formed after reaction between benzaldehyde and methyl magnesium iodide followed by acid hydrolysis is ____________.


Which of the following is Schiff's reagent?


ln which of the following reactions, both oxidised and reduced forms of the same compound are obtained?


Which of the following compounds does NOT undergo aldol condensation?


\[\begin{array}{cc} \phantom{...}\ce{R}\phantom{.................}\ce{R}\phantom{..}\ce{H}\phantom{................}\\ \phantom{...}\backslash\phantom{..................}\backslash/\phantom{..........}\phantom{.......}\\ \ce{C = O ->[H2NNH2][KOH/glycol] C + N2 + H2O}\\ \phantom{}/\phantom{............}\phantom{.......}/\phantom{}\backslash\phantom{...............}\\ \phantom{}\ce{R}\phantom{..................}\ce{R}\phantom{..}\ce{H}\phantom{...............} \end{array}\]

Reaction is called ____________.


Which of the following does not give yellow solid on treatment with sodium hypoiodlte?


Fehling solution is ____________.


Acetone on Clemmensen reduction gives ____________.


Following reaction is an example of ____________.

\[\ce{Benzaldehyde ->[Nitration] {m}-Nitrobenzaldehyde}\]


The number of α-H atoms in butanal is ____________.


Which of the following is Clemmensen reduction?


Which among the following compounds does NOT undergo aldol condensation?


Which of the following reagents is used for the following conversion?

\[\ce{CH3 - CH = CH - CHO -> CH3 - CH = CH - CH2OH}\]


Identify the product Y in the following series of reactions.

\[\ce{4-Nitrotoluene ->[(CH3CO)2O/CrO3][273 - 278 K] X ->[H3O^+][\Delta] Y}\]


Reaction of acetone with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is:


Predict the product Z in the following series of reactions.

\[\ce{Ethanoic acid ->[PCl5] X ->[C6H6][Anhydrous AlCl3] Y ->[i) CH3MgBr][H3O^+] Z}\]


Identify the product formed in the reaction.


Phenyl methanal is reacted with concentrated NaOH to give two products X and Y. X reacts with metallic sodium to liberate hydrogen X and Y are ____________.


What is the action of HCN on 2, 4-dichlorobenzaldehyde?


Complete the following reaction.

\[\begin{array}{cc}
\ce{CH3 - CH2 - CH2 - C - CH3 ->[HO - CH2 - CH2 - CH2 - OH][dry HCl] ?}\\
||\phantom{.........}\\
\ce{O}\phantom{.........}
\end{array}\]


Identify A, B and C.


How will you prepare ethyl acetate from methyl acetate?


How will you prepare malachite green from benzaldehyde?


How will you prepare acetaldehyde from ethyne?


How propanal is converted into propane.


A substance C4H10O yields on oxidation a compound, C4H8O which gives an oxime and a positive iodoform test. The original substance on treatment with a conc. H2SO4 gives C4H8. The structure of the compound is ______.


In the above reaction, product (B) is:


Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.


Give two examples which undergo Wolf-Kishner reduction.


How will you prepare Acetic anhydride from acetic acid ?


Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.


Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.


Which from following tests confirms presence of aldehydic group in glucose?


What is IUPAC name for

  ?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×